can pain
Verbo regular: pain - pained- pained

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can pain
you can pain
he can pain
we can pain
you can pain
they can pain 	I can be paining
you can be paining
he can be paining
we can be paining
you can be paining
they can be paining	I can have pained
you can have pained
he can have pained
we can have pained
you can have pained
they can have pained	I can have been paining
you can have been paining
he can have been paining
we can have been paining
you can have been paining
they can have been paining	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot pain
you cannot pain
he cannot pain
we cannot pain
you cannot pain
they cannot pain 	I cannot be paining
you cannot be paining
he cannot be paining
we cannot be paining
you cannot be paining
they cannot be paining	I cannot have pained
you cannot have pained
he cannot have pained
we cannot have pained
you cannot have pained
they cannot have pained	I cannot have been paining
you cannot have been paining
he cannot have been paining
we cannot have been paining
you cannot have been paining
they cannot have been paining	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I pain?
can you pain?
can he pain?
can we pain?
can you pain?
can they pain? 	can I be paining?
can you be paining?
can he be paining?
can we be paining?
can you be paining?
can they be paining? 	can I have pained?
can you have pained?
can he have pained?
can we have pained?
can you have pained?
can they have pained? 	can I have been paining?
can you have been paining?
can he have been paining?
can we have been paining?
can you have been paining?
can they have been paining? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not pain?
can you not pain?
can he not pain?
can we not pain?
can you not pain?
can they not pain? 	can I not be paining?
can you not be paining?
can he not be paining?
can we not be paining?
can you not be paining?
can they not be paining? 	can I not have pained?
can you not have pained?
can he not have pained?
can we not have pained?
can you not have pained?
can they not have pained? 	can I not have been paining?
can you not have been paining?
can he not have been paining?
can we not have been paining?
can you not have been paining?
can they not have been paining?